Linux Systems Administrator

Linux Systems Administrator

Job Locations

US-MD-Linthicum

Requisition ID

2026-165138

Position Category

Engineering

Clearance

Secret

Responsibilities

As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted and highly differentiated national security solutions and technologies that keep people safe and secure. Peraton serves as a valued partner to essential government agencies across the intelligence, space, cyber, defense, civilian, health, and state and local markets. Peraton is seeking a Linux System Administrator to join our team of qualified, diverse individuals.

What you will do:

Provision, manage, and support Red Hat Enterprise Linux (RHEL) and Ubuntu servers across several internet-connected and internet-disconnected networks.
• Develop, utilize, and maintain Ansible Playbooks to secure, patch, and configure Linux servers.
• Manage Kubernetes clusters as well as the workloads deployed on the clusters.
• Manage and configure connected services such as network adapters, storage, and firewalls.
• Deploy, configure, and support monitoring capabilities to detect anomalous conditions or service disruptions.
• Investigate service disruptions and provide root cause analysis reports and implement additional steps to prevent subsequent issues.
• Support deployments of new hardware and software applications and appliances.

Schedule:

• The system administration team is expected to have on-site coverage 0600-1800 Monday-Friday and schedules will be coordinated with other members of the team to ensure this coverage.
• Location: Baltimore metropolitan area.

Qualifications

Basic Qualifications:

• Bachelor's degree and 8+ years of experience, or Master's degree and 6+ years of experience, 3 years with PhD. A degree should be in one of the following fields: Information Technology, Information Systems, Computer Science, Software Engineering, Data Science, or Cybersecurity.
• Must be a U.S. Citizen and have an active Secret clearance.
• Strong oral and written communications skills.

Required Technical Qualifications:

• Expertise with Configuration as Code (CaC) tooling, Ansible preferred.
• Expertise managing Red Hat Enterprise Linux (RHEL) and Ubuntu systems on disconnected environments.
• Active CompTIA Security+ certification.

Preferred Technical Qualifications:

• Experience with Infrastructure as Code (IaC) tooling, Terraform preferred.
• Experience administering Kubernetes clusters and services.
• Experience managing secure computing environments to adhere with DISA STIGs and NIST 800-53 controls.
• Experience monitoring system uptime and performance with tools such as Splunk, Grafana, and SolarWinds.
• Experience providing detailed technical after-action reports with root cause analysis after outage or security incidents.
• Familiarity with host-level networking such as instance firewalls.
• Familiarity with storage provider management such as Network File Systems (NFS).
• Familiarity with source code management tooling such as GitHub or GitLab.

Peraton Overview

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can't be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we're keeping people around the world safe and secure.

Target Salary Range
$112,000 - $179,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual's experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

EEO

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.